Public water system · ME0091670
ActiveYarmouth Water District
At a glance
Yarmouth Water District (PWSID ME0091670) is an active community water system in Cumberland County, Maine. It reports serving 8,000 people through 3,200 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in December 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,000
Service connections
3,200
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Yarmouth Water District compare with other water systems in Cumberland County?
By EPA's size categories, Yarmouth Water District is a medium system (3,301 to 10,000 people). Cumberland County has 225 active public water systems, and Yarmouth Water District is the 3rd-largest of them by population served. Its population served is about 8.3 times the county average of 967 people per system, and accounts for 3.7% of the 217,594 people reported by systems filed under the county. Across Maine, the 1,862 active systems average 503 people each. Nationally, the average active community water system reports serving 6,703 people, so Yarmouth Water District is about 19% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Maine has 386 active community water systems, 21% of the state's 1,862 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,780 Maine systems (96%) list groundwater as their primary source.
Who owns and regulates Yarmouth Water District?
EPA lists Yarmouth Water District as owned by a local government. The ME state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 24 of the 225 active systems in Cumberland County (11%) are also owned by a local government.
Does Yarmouth Water District have drinking water violations?
EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in December 2024. The violations listed here began between August 2002 and December 2024. By type: 7 contaminant level above the legal limit, 2 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 10 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2010-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 10 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Yarmouth Water District: frequently asked questions
Who runs Yarmouth Water District?
Yarmouth Water District (PWSID ME0091670) is a community water system owned by a local government. It is regulated by the ME state drinking water program.
How many people does Yarmouth Water District serve?
Yarmouth Water District reports serving 8,000 people through 3,200 service connections in Cumberland County, Maine.
Where does Yarmouth Water District get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Yarmouth Water District have any drinking water violations?
EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in December 2024. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Yarmouth Water District's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the ME state drinking water program.
Where can I find Yarmouth Water District's water quality report?
As a community water system, Yarmouth Water District must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Cumberland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Portland Water District-Greater | Cumberland | 135,068 | Community | Surface water |
| Brunswick/Topsham Water District | Cumberland | 18,863 | Community | Groundwater |
| Bridgton Water District | Cumberland | 3,660 | Community | Groundwater |
| Maine Water Company Freeport Division | Cumberland | 2,700 | Community | Groundwater |
| Gray Water District | Cumberland | 2,468 | Community | Groundwater |
| Point Sebago Outdoor Resort | Cumberland | 1,833 | Transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Yarmouth Water District, PWSID ME0091670, Maine”, https://aquacensus.com/water-systems/maine/yarmouth-water-district-me0091670 (data as of October 1, 2026).